When you initiate Sonic The Hedgehog 1, 2, 3, Sonic And Knuckles, Sonic 3D Blast, Dr. Robotnic's Mean Bean Machine, or Sonic Spinball, the screen states that it is logging the game data. That indicates the game is logging in that you have initiated that game once. After initiating a game fifty times, it no longer shows that game-logging screen. It stops the logging sequence screen from ever starting a game again and from then on, just starts the Genesis program itself. To unlock a hidden game, you must start a particular Mega Collection game fifty times, continually exit it, then enter into the game repeatedly. Some hidden games do not necessarily require that you start up fifty times, but you eventually need to do so to unlock all the hidden games.

Go into exercise mode, wait until you get a Blue/Green bean, and try not to cover it. When you see a Has Bean come into the dungeon, put it on top of the Blue/Green bean. This will usually give you more points.

Level passwords

Level

Opponent

Password

Easy

2

Frankly

Red, Red, Red, Has Bean

3

Humpty

Clear Bean, Purple, Clear Bean, Green

4

Coconuts

Red, Clear Bean, Has Bean, Yellow

5

Davy Sproket

Clear Bean, Blue, Blue, Purple

6

Sqweel

Clear Bean, Red, Clear Bean, Purple

7

Dynamight

Purple, Yellow, Red, Blue

8

Grounder

Yellow, Green, Has Bean, Blue

9

Spike

Yellow, Purple, Has Bean, Blue

10

Sir Fuzzy Logik

Red, Yellow, Clear Bean, Has Bean,

11

Dragon Breath

Green, Purple, Blue, Clear Bean,

12

Scratch

Red, Has Bean, Has Bean, Yellow,

13

Dr. Robotnik

Yellow, Has Bean, Blue, Blue

Normal difficulty

2

Frankly

Has Bean, Clear Bean, Yellow, Yellow

3

Humpty

Blue, Clear Bean, Red, Yellow

4

Coconuts

Yellow, Blue, Clear Bean, Purple

5

Davy Sproket

Has Bean, Green, Blue, Yellow

6

Sqweel

Green, Purple, Purple, Yellow

7

Dynamight

Purple, Blue, Green, Has Bean

8

Grounder

Green, Has Bean, Clear Bean, Yellow

9

Spike

Blue Purple, Has Bean, Has Bean

10

Sir Fuzzy Logik

Has Bean, Red, Yellow, Clear Bean

11

Dragon Breath

Clear Bean, Red, Red, Blue

12

Scratch

Green, Green, Clear Bean, Yellow

13

Dr. Robotnik

Purple, Yellow, Has Bean, Clear Bean

Hard difficulty

2

Frankly

Green, Clear Bean, Yellow, Yellow

3

Humpty

Yellow, Clear Bean, Purple, Clear Bean

4

Coconuts

Blue, Green, Clear Bean, Blue

5

Davy Sproket

Red, Purple, Green, Green

6

Sqweel

Yellow, Yellow, Clear Bean, Green

7

Dynamight

Purple, Clear Bean, Blue, Blue

8

Grounder

Clear Bean, Yellow, Has Bean, Yellow

9

Spike

Purple, Blue, Blue, Green

10

Sir Fuzzy Logik

Clear Bean, Green, Red, Yellow

11

Dragon Breath

Blue, Yellow, Yellow, Has Bean

12

Scratch

Green, Clear Bean, Clear Bean, Blue

13

Dr. Robotnik

Has Bean, Clear, Purple, Has Bean

Hardest difficulty

2

Frankly

Blue, Blue, Green, Yellow

3

Humpty

Green, Yellow, Green, Clear Bean

4

Coconuts

Purple, Purple, Red, Has Bean

5

Davy Sproket

Green, Red, Purple, Blue

6

Sqweel

Blue, Purple, Green, Yellow

7

Dynamight

Blue, Purple, Green, Has Bean

8

Grounder

Clear Bean, Purple, Has Bean, Yellow

9

Spike

Purple, Green, Has Bean, Clear Bean

10

Sir Fuzzy Logik

Green, Blue, Yellow, Has Bean

11

Dragon Breath

Green, Purple, Has Bean, Red

12

Scratch

Red, Green, Has Bean, Blue

13

Dr. Robotnik

Red, Red, Clear Bean, Yellow

Flicky

Bonus picture

Successfully complete rounds one through ten in under twenty seconds and receive a perfect score in each bonus round to accumulate over 240,000 points. A picture of a girl in a bikini will appear in the lower left corner of the screen.

Round select

Begin a new game and hold Up + A + X + Start before the first round appears. Release the buttons at the "Round 1" screen. Press Up or Down to select a starting round.

Ristar

Level select

Enter "ILOVEU" as a password.

Configuration mode

Enter "MAGURO" as a password.

Time attack mode

Enter "DOFEEL" as a password.

Boss mode

Enter "MUSEUM" as a password.

Expert mode

Enter "SUPER" or "SUPERB" as a password.

Reveal items

Enter "MIEMIE" as a password. A silver star will appear during the game in locations where you can collect a bonus life, gold star, or treasure.

View credits

Enter "AGES" as a password.

Disable all codes

Enter "XXXXXX" as a password.

Sonic 3D Blast

Level select

When the phrase "Press Start" appears on the opening screen, press B, A, Right, A, X, Up, Down, A, Start. The level selection screen will be displayed when the game begins.

Level skip

Enable the "Level select" code. Pause the game and press A to jump to the next level.

Fast emeralds

Enable the "Level select" code two times. Select any stage that features Tails or Knuckles (such as stage 1). Accumulate fifty rings and visit Tails or Knuckles. Press A + Start when the special stage starts for the emerald.

Extra lives

Accumulate fifty rings, enter the special stage, and get the emerald. Lose your current life, accumulate another set of fifty rings, and re-enter the special stage. Give the rings to the same character used the first time the special stage was entered. The same stage where the emerald was awarded will re-appear. Successfully complete the stage for an extra life. Collect 100 rings for another extra life. Lose your current life and repeat this procedure to get an unlimited amount of lives.

Tails and Knuckles in Rusty Ruins Act 2

When you get to the third part, immediate before the X Mark, go off the nearby cliff. Then, go down where the Bumblebee Badnik is located. Destroy that little object with the grass under it. Then, you can get to Tails. On the first part, go to where the Blue Shield is located, next to the first exit. Collect 50 Power Rings, then Spin Dash into that wall that looks pushed back slightly. If you won all the Special Stages so far, with six Emeralds you will get the Last Chaos Emerald.

Knuckles in Rusty Ruins Act 1

At the last rotating pair of spiked balls, just before the "X", are two small pillars with a wall that you can Spin Dash through. Once through, return to a thing that sets you spinning, then go to Knuckles to break through the pillars beside him.

Sonic And Knuckles

Level select in Sonic The Hedgehog And Knuckles

Start a game with Sonic. Run over to where the Super Shoes power-up and Madmole creature are right next to each other. Directly to the right of the Madmole is a pulley mechanism that takes you to the next level above by pushing Down on it repeatedly. Grab a hold of its left handle, but instead of pushing down, push the follow sequence while on it: Left(3), Right(3), Up(3). If you entered the code correctly, you will hear the sound of a chime. After hearing the chime, press Start to pause the game, then press B. You will be sent back to the Sega logo and title screen. Wait for the introduction sequence to end, then when the selection for choosing Sonic or Knuckles appears, press Start while holding B.

Go into Sonic The Hedgehog, Sonic The Hedgehog 2, Sonic The Hedgehog 3, and Sonic And Knuckles and exit repeatedly until you see that the game log recording message is gone. When all gamelogs for Sonic The Hedgehog 1 through 3 and Sonic And Knuckles are gone, Sonic The Hedgehog 3 And Knuckles will be unlocked.

Sound test and level select in Sonic The Hedgehog 3 And Knuckles

Begin a game at Angel Island Zone Act 1. Grab one of the swings that you hang on, then press Left(3), Right(3), Up(3) while Sonic is swinging. If you entered the code correctly, you will hear a sound. Pause the game and press A to return to the title screen. Press Down(2) to access the sound test option. Select that option to play any sound or choose any level.

Debug mode in Sonic The Hedgehog 3 And Knuckles

Enable the "Sound test and level select" code. Go to level selection screen and choose Mushroom Hill Act 1. Then, find something to hang on (such as a pulley) and press Left(3), Right(3), Up(3). If you entered the code correctly, you will hear the sound of a ring. Press Start, then B. Once you are at the main menu, go to the level selection screen and choose any level. Note: Instead of pressing Start to start the level, hold B and press Start. Once you are in the level, debug mode should be active. Press X to jump, B to switch gravity, and A to access item spawning mode. While in spawning mode, press A to switch back to normal mode, B to switch the item, and X to spawns the selected item.

Super Sonic in Sonic The Hedgehog 3 And Knuckles

Enable the "Debug mode" code and spawn a monitor. The monitor will have an "S" on it. Break it open to become Super Sonic.

Super Tails or Super Knuckles in Sonic The Hedgehog 3 And Knuckles

Enable the "Debug mode" code, go to any level with Tails or Knuckles, and create the monitor with the "S" on it. Break it open and you will become Super Tails or Super Knuckles. Each super character has different features, the most interesting being Tails, who has birds that will destroy an opponent for you.

Very fast tricks in Sonic The Hedgehog 3 And Knuckles

While in Super Sonic, Tails, or Knuckles form, press X + A.

Gold Super Emerald in Sonic The Hedgehog 3 And Knuckles

Enable the "Level select" and "Debug mode" codes. Go to Lava Reef Act 4. Go to the place where Dr. Robotnik takes the giant emerald. Instead of staying on the floor that breaks, turn yourself into the ring and move to the small ledge. As soon as you can go left, create an S box, break it, then immediately turn back into the ring. Next, move to the glowing super emeralds. The Super Sonic music should play. Instead of a blue super emerald appearing, there should be a golden one. Note: This does not work with Knuckles.

Infinite air in Sonic The Hedgehog 3 And Knuckles

Enable the "Level select" and "Debug mode" codes. Go to any level with water. Go underwater and when you run low on air, transform into the ring then return to normal. Your air will be completely refilled.

Infinite lives in Sonic The Hedgehog 3 And Knuckles

In the Launch Base level, get to the first siren. Charge up a Spin Dash and hold Down. If a bird does not appear, release Down and try again. If a bird appears, hold Down for the rest of the time limit to get up to 50 lives.

Collect all the rings on a level and use the gate that appears to be a large shining ring.

Infinite lives

Locate the barrels in the Toxic Caves stage. Jump in a barrel and move toward the wall opposite the emerald. Jump out of the barrel and intentionally lose a life while returning to that barrel. Sonic will seem to die twice before re-appearing at the start of the level. The phrase "Launching Extra Ball" will appear allowing unlimited lives to be accumulated. Additionally, kill yourself until you have one life remaining. Then, locate the barrels in the Toxic Caves stage. Jump in a barrel and move toward the wall opposite the emerald. Jump out of the barrel and intentionally lose a life while returning to that barrel. Sonic will seem to die twice before re-appearing at the start of the level. :"Game Over" will appear, but you still will be able to play. Also, there will be no number of lives displayed where it normally appears.

Sonic The Hedgehog

Cheat mode

At the title screen, press Up, Down, Left, Right. If you entered the code correctly, you will hear a chime. Hold B to enter the level selection and sound test screen.

By default, the game is set to the Japanese version. Press Up, Z, Down, Z, Left, Z, Right, Z at the Sonic The Hedgehog information screen to unlock the North American version. Press Z(9), Up, Down, Left, Right to play the alternate Japanese version.

All Chaos Emeralds

At the title screen, press Up, Down, Left, Right. If you entered the code correctly, you will hear a chime. Hold B and press Start. Choose your starting level. When you get to the main game, press Start then press B to return to the title screen. When Sonic starts to appear, press Up, X, Down, X, Left, X, Right. If you entered the code correctly, you will hear a chime. Hold B + Start to access the level selection screen. Highlight the Special Stage. Hold B + Start when begin, and hold the buttons until game the starts. You can go into debug mode and float over to the Emerald. Repeat until you have them all. Then during the actual game, enable Debug mode and zip through them all. This is the easiest way to finish with all Chaos Emeralds.

Enable the "Cheat mode" code. Select the "Bonus level" option on the level selection screen. Obtain the Chaos Emerald, reset the game, and repeat the process until all of them are in your possession. Allow the game to continue after obtaining the last Chaos Emerald to start in the Green Hill Zone.

Collect the extra life at the very bottom of Green Hill Zone - Act 3. Accumulate 100 rings to obtain another extra life. Collect a third extra life located at the top of the loop-the-loop. Intentionally lose a life and repeat the process.

Special Zone entrance

You can almost always have the Special Zone entrance open (the giant ring next to the sign at the end of level Acts 1 and 2) by not losing your rings. If you do lose your rings, when you pass a checkpoint, intentionally die, then continue through the level without losing any rings. This works about 80% of the time.

Sonic The Hedgehog 2

Level select

Use the sound test selection on the options menu. Choose sounds 19, 65, 9, and 17 (in that order). If you entered the code correctly, you will hear a chime. Hold X and press Start. Hold B and press Start when Sonic and Tails appear at the title screen.

Debug mode

Enable the "Level select" code. Use the sound test selection on the options screen. Choose sounds 1, 9, 9, 2, 1, 1, 2, 4 (in that order). If you entered the code correctly, you will hear a chime. Select any starting level, then hold B + Start until game play begins. Screen coordinates will appear instead of a score and the number of objects displayed will appear instead of the time remaining. Use one of the following controller actions to enable the corresponding debug code. Note: This code may only be enabled when playing as Tails alone.

Level editor

Enable the "Debug mode" code. During a game, press the button configured as "B" on the Genesis. Sonic should become an object somewhere on the level. Press the button configured as "C". You can "paste" that object in the level. Press the button configured as "B" again to resume the game. Press the button configured as "A" on the Genesis while editing the level to change the object. You can also move the object in the air, etc. to truly make your own challenge. Also, you can move across obstacles and turn back to Sonic to cut points in the level.

Play as Super Sonic

At the title screen, press Up and access the "Options" screen. Go to "Sound Select" and listen to sounds 19, 65, 9, 17 (in that order.). Hold X + Start to return to the title screen. Hold B + Start to go to the level select menu. Go to the new sound select and listen to sounds 1, 9, 9, 2, 1, 1, 2, 4 (in that order). Now, listen to sounds 4, 1, 2, 6 (in that order). You should hear the Emerald sound effect. Highlight your level, then hold B + Start. Keep the buttons held until game play begins. Turn into a ring, appear overlapped with Tails, and keep spawning rings directly where he is standing. When you have set 50 rings into him, turn back to normal and jump to become Super Sonic.

Use the sound test selection on the options menu. Choose sounds 01, 01, 02 and 04 (in that order), then press Start. You will begin the game with fourteen continues.

Tails name changed to Miles

At the title screen, press Up(3), Down(3), Up. If you entered the code correctly, you will hear a sound. Tails' name will be changed to "Miles". Note: The opposite will occur in the Japanese version of the game.

No time

Press Start and hold A. Use X to jump and there will be no music. Your time will now stay at 0:00.

Super Tails and Super Sonic

Enable the "Level select" and "Debug mode" codes. Then, start any level and get 50 rings. You can use the "Turn into a ring and give them to Tails" trick. When you turn into Super Sonic, use debug mode to turn into a television. It should be a "switch" television from versus mode when you place it. If you break it, you will see a brief glitch, which will not effect the game. You will see everything return, with one small difference. You will still have Super Sonic's appearance, but he plays like Sonic with regular speed, normal jumps, etc. Tails, however, has Super Sonic's power and cannot be "hurt". This will last for however many rings you had when you hit the television; start when you have at least 100 rings. Then, hurt yourself so that you lose all your rings and you will lose Super Sonic's appearance. Then, use the trick to get fifty rings again and jump. You should now have Super Sonic and Super Tails.

Mega Sonic

Collect fifty rings and jump after becoming Hyper Sonic for even more speed and higher jumps.

Ashura

Enable the "Level select" and "Debug mode" codes. Then, go to Emerald Hill Zone Act 1 or 2. Transform into the default ring, then press B(4) to become an invisible object. You will be a waterfall. Place waterfalls by constantly pressing A from where you start to over by the "coconuts" enemy in the tree . You will eventually see the life counter in the corner change to Ashura's. Turn Sonic into himself again and he should come out as Ashura, his brother. You can change his color by continuing to place waterfalls; if you watch the life monitor, you will see the changes in color.

Infinite lives

Enable the "Level select", "Play as Super Sonic", and "Debug mode" codes and enter any stage. Get fifty rings and turn into Super Sonic. Change Sonic into the television monitor. Change Sonic back and have him jump to turn into Super Sonic. Jump on the television monitor to have Tails become invincible. Then, turn into an enemy and put it right on tails while he is invincible. Continuously place the robots there, and they will be destroyed because Tails is invincible. You should get lots of points, which adds up to extra lives.

Infinite speed shoes

Begin a game in two player vs. mode and hit as many item boxes as possible until you get the speed shoes. Then, intentionally lose your life while you have them (getting squashed is the easiest way). You will return to the start of the level or the last Star Post that you hit, but you will now have the speed shoes in effect for the rest of the stage.

Super Sonic sign

Get all of the Chaos Emeralds and transform into Super Sonic. Try to have at least fifty rings when you finish the level. After completing the level, run off screen and wait until the end-of-level sign shows Sonic. When it does, transform into Super Sonic. The sign will show Super Sonic for one second, then show blue Sonic again.

Starry Super Sonic

Get all the Chaos Emeralds and collect fifty rings, but do not transform into Super Sonic yet. Find an invincibility monitor and spin (do not jump) into it. Then, transform into Super Sonic. If done correctly, the stars will surround Super Sonic until he runs out of rings and transforms back into blue Sonic. Note: This does not improve Super Sonic's performance.

Stronger Super Sonic

Enable the "Level select" and "Debug mode" codes. Go to Oil Ocean (either act). Become Super Sonic, then stand on one of the green/yellow colored cylinders. Jump on it, but as soon as you hear it break, go into debug mode. You should be thrust upward, even in your debug state. Then as soon as you regain traction, exit debug mode. You should now be able to jump twice as high and fast.

Flames follow Sonic

Enable the "Debug mode" code. You can also enable the "Play as Super Sonic" code, if desired. Go to Death Egg Zone and defeat the two bosses. When you defeat the giant egg robot, turn into a ring instead of running all the way out. Go into the area where flames appear. Go back to where you battled the egg robot. Flames should follow you where ever you go.

Wing Fortress shortcut

In Wing Fortress, move with some rings as far to the right as possible without climbing. When blades appear to block your way, hit them. As soon as you are invincible, walk through them. Jump on the platforms to the right and half the level will be completed.

Bonus points

For extra points, pass any zone in a certain amount of time. For the best bonus, enter the "Debug mode" code. The clock will stop and you will always score a 50,000 bonus.

Time

Points

0:30

50,000

0:45

10,000

1:00

5,000

1:30

4,000

2:00

3,000

3:00

2,000

4:00

1,000

5:00

500

Sonic The Hedgehog 3

Level select

After the Sega logo fades and Sonic starts to appear, and before the screen flashes white, quickly press Up(2), Down(2), Up(4). If you entered the code correctly, you will hear a chime. Press Up at the title screen to access level select and sound test options.

Set off the first alarm on the first level of the Launch Base Zone. Wait in the middle of the alarm and perform Spin-Dash attacks on the Flybots. The value of the Flybots will eventually increase to 10,000 points as they continue to attack. Accumulate points and lives at this location.

Sonic And Knuckles music

In the 2nd Zone and 3rd Act, before fight Dr. Robotnik, allow your character to almost drown, then put your head back up in air (touch the starpost but down jump in it).

Speed boost

To instantly get a speed up, jump when Sonic is a little over halfway on the loop.

Quick Goodies

At the start of Angel Island, kill the monkey in the tree and jump on the first gray rock to reveal a bumper spring. Bounce up into the tree, and using the bumper spring hidden in the tree, bounce left to land on the moving platform. The platform will take you to a ring bonus and lightning shield power-up. Using the spring in the tree again, bounce right to land on ground with spikes and a RhinoBot. Jump past these to collect the fire shield.

Many rings

On Act 3 of the Icecap Zone, turn into a ball at the end before you reach Robotnic and fly off a ramp onto a purple trampoline. Look up to see a large number of rings. Bounce high enough to find another whole set of rings. Go to the right far enough to find a big ring.